Pros
Retirement savings matching (free money). Ernst and Young financial planning at no cost. Education reimbursement, if you're interested in going back to school. They take your own personal career desires into account Competitive salary. Annual raises. Very competent colleagues. Ample exposure to a diverse variety of colleagues around the world. Good amount of travel opportunities.
Cons
Personally, I would rather not work for an oil company. Incredibly bureaucratic and hierarchical management. VERY noticeable age gap between the younger progressive professionals and the older stodgy white hairs. No bonuses. Employees are ranked against each other, and not informed of their ranking. VERY slow to adapt to new technologies. They are their own worst enemy when they try to move fast.